If Microsoft is such a great open source citizen this day, why are they charging billions in patent licensing fees to people building things on Android? It see

If Microsoft is such a great open source citizen this day, why are they charging billions in patent licensing fees to people building things on Android? It seems like one of the benefits of being really big is that you can act like the evil stuff is only 5% of your business, even if it’s the evil stuff that made you big in the first place.